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US 7,683,005 B2Granted
Photocatalyst, manufacturing method therefor and articles comprising photocatalyst
AssigneeFujitsu Limited
InventorsKazuaki Kurihara, Masato Wakamura, Yasuo Naganuma, Noriyasu Aso
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Abstract
A photocatalyst having superior properties of adsorption and decomposition with respect to various substances is provided. This photocatalyst comprises a porous body coated with titanium apatite. The porous body is preferably diatomaceous earth. The photocatalyst can be formed by co-precipitation or a sol-gel method.
Claims9
A method for manufacturing a photocatalyst comprising a porous body coated with titanium apatite, wherein:
- titanium apatite produced by co-precipitation is deposited on the porous body;
- and
- said porous body is included in a medium used to form the titanium apatite during formation of the titanium apatite by said co-precipitation.
A method for manufacturing a photocatalyst comprising a porous body coated with titanium apatite, wherein:
- a porous body is added to a liquid comprising titanium apatite produced by a sol-gel method or raw materials thereof or an intermediate thereof, causing said titanium apatite to be deposited on said porous body;
- and
- the titanium apatite-converted titanium concentration in the liquid comprising titanium apatite produced by the sol-gel method or raw materials thereof or an intermediate thereof is in the range of 0.001 to 0.5% by weight.
Dependencies are inferred from the claim text.